#577A8A#577A8A

#577A8A is a mid, muted cyan. Relative luminance 0.178; OKLCH L 55.9% C 0.047 H 228.0°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#577A8A
RGB	rgb(87, 122, 138)
HSL	hsl(199, 23%, 44%)
HSV	hsv(199, 37%, 54%)
CMYK	cmyk(37%, 11.6%, 0%, 45.9%)
CIE-LAB	lab(49.23, -8.12, -12.65)
CIE-LCH	lch(49.23, 15.04, 237.30°)
OKLab	oklab(55.91% -0.0313 -0.0347)
OKLCH	oklch(55.91% 0.047 228)
XYZ	xyz(15.4759, 17.7794, 26.6561)
Luminance	0.1778 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577A8A #8A6757

analogous

#578A81 #577A8A #57618A

triadic

#577A8A #8A577A #7A8A57

tetradic

#577A8A #81578A #8A6757 #618A57

square

#577A8A #81578A #8A6757 #618A57

split-complementary

#577A8A #8A5761 #8A8157

monochromatic

#28383F #3F5964 #577A8A #7699A8 #9BB5C0

Accessibility & contrast

On white

4.61

#577A8A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#577A8A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #577A8A

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577A8A	#FFFFFF	#000000	##FFFFFF
##577A8A	1.00	4.61	4.56	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#72788B

Deuteranopia (green-blind)

#6A728A

Tritanopia (blue-blind)

#457F7F

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #577a8a;
/* rgb */ color: rgb(87, 122, 138);
/* oklch */ color: oklch(55.9% 0.047 228.0);

Tailwind

colors: {
  custom: {
    50: '#88a0ac',
    500: '#577a8a',
    950: '#000000',
  },
}

SCSS

$custom: #577a8a;
$custom-light: #88a0ac;
$custom-dark: #000000;

JSON

{
  "hex": "#577a8a",
  "rgb": {
    "r": 87,
    "g": 122,
    "b": 138
  },
  "hsl": {
    "h": 198.824,
    "s": 22.667,
    "l": 44.118
  },
  "oklch": {
    "l": 0.55907,
    "c": 0.04675,
    "h": 228
  },
  "luminance": 0.1778
}

Semantic roles & 50–950 ramp

primary

#577A8A

secondary

#AE998F

accent

#8469BF

background

#F8F9FA

surface

#F0F2F4

border

#CBCCCE

text

#0B0E10

muted

#7C7E7F

Preview Lab

Preview with #577A8A

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →